docs: def _convolve_np(data, h):
      """
      numpy variant
      """
  
      data_g = OCLArray.from_array(np.require(data,np.float32,"C"))
      h_g = OCLArray.from_array(np.require(h,np.float32,"C"))
  
      return _convolve_buf(data_g, h_g).get()